<!DOCTYPE html>
<HTML>

<HEAD>
	<TITLE> ZTREE DEMO - beforeExpand / onExpand && beforeCollapse / onCollapse</TITLE>
	<meta http-equiv="content-type" content="text/html; charset=UTF-8">
	<link rel="stylesheet" href="../../../css/demo.css" type="text/css">
	<link rel="stylesheet" href="../../../css/zTreeStyle/zTreeStyle.css" type="text/css">
	<script type="text/javascript" src="../../../js/jquery-1.4.4.min.js"></script>
	<script type="text/javascript" src="../../../js/jquery.ztree.core-3.5.js"></script>
	<!--  <script type="text/javascript" src="../../../js/jquery.ztree.excheck-3.5.js"></script>
	  <script type="text/javascript" src="../../../js/jquery.ztree.exedit-3.5.js"></script>-->
	<SCRIPT type="text/javascript">
		<!--
		var setting = {
			view: {
				selectedMulti: false
			},
			data: {
				key: {
					title: "t"
				},
				simpleData: {
					enable: true
				}
			},
			callback: {
				beforeClick: beforeClick,
				beforeCollapse: beforeCollapse,
				beforeExpand: beforeExpand,
				onCollapse: onCollapse,
				onExpand: onExpand
			}
		};

		var zNodes = [
			{
				id: 1,
				pId: 0,
				name: "可折腾的父节点 1",
				t: "我很普通，随便 展开/折叠 我吧",
				open: false,
				checked:true
			},
			{
				id: 11,
				pId: 1,
				name: "叶子节点 - 1",
				t: "我老爸很普通，随便折腾他吧"
			},
			{
				id: 12,
				pId: 1,
				name: "可折腾的父节点 2",
				t: "我和我老爸都很普通，随便折腾我和他吧",
				open: false
			},
			{
				id: 121,
				pId: 12,
				name: "父节点 - 121",
				t: "我老爸很普通，随便折腾他吧",
				open: true
			},
			{
				id: 1211,
				pId: 121,
				name: "父节点 - 1211",
				t: "我老爸很普通，随便折腾他吧",
				open: false
			},
			{
				id: 1212,
				pId: 1211,
				name: "叶子节点 - 1212",
				t: "我老爸很普通，随便折腾他吧"
			},
			{
				id: 1213,
				pId: 121,
				name: "父节点 - 1213",
				t: "我老爸很普通，随便折腾他吧",
				open: false
			},
			{
				id: 1214,
				pId: 1213,
				name: "叶子节点 - 1214",
				t: "我老爸很普通，随便折腾他吧"
			},
			{
				id: 123,
				pId: 12,
				name: "叶子节点 - 23",
				t: "我老爸很普通，随便折腾他吧"
			},
			{
				id: 13,
				pId: 1,
				name: "叶子节点 - 3",
				t: "我老爸很普通，随便折腾他吧"
			},
			{
				id: 2,
				pId: 1,
				name: "无法折叠的父节点",
				t: "休想让我折叠起来...除非你用 expandAll 方法",
				open: false,
				collapse: false
			},
			{
				id: 21,
				pId: 2,
				name: "叶子节点2 - 1",
				t: "哈哈哈，我老爸NB吧，不能折叠吧？"
			},
			{
				id: 22,
				pId: 21,
				name: "叶子节点2 - 2",
				t: "哈哈哈，我老爸NB吧，不能折叠吧？"
			},
			{
				id: 23,
				pId: 21,
				name: "叶子节点2 - 3",
				t: "哈哈哈，我老爸NB吧，不能折叠吧？"
			},
			{
				id: 3,
				pId: 2,
				name: "无法展开的父节点",
				t: "就凭你也想展开我？难呀...嘿嘿, 除非你用 expandAll 方法",
				open: false,
				expand: true
			},
			{
				id: 31,
				pId: 3,
				name: "叶子节点3 - 1",
				t: "居然让你看到了...莫非你用了全部节点展开？"
			},
			{
				id: 32,
				pId: 31,
				name: "叶子节点3 - 2",
				t: "居然让你看到了...莫非你用了全部节点展开？"
			},
			{
				id: 33,
				pId: 31,
				name: "叶子节点3 - 3",
				t: "居然让你看到了...莫非你用了全部节点展开？"
			},
			{
				id: 4,
				pId: 3,
				name: "空空的父节点 1",
				t: "一无所有...除了我自己",
				isParent: true,
				open: false
			}
		];

		var log, className = "dark";

		function beforeClick(treeId, treeNode) {
			if (treeNode.isParent) {
				return true;
			} else {
				alert("这个 Demo 是用来测试 展开 / 折叠 的...\n\n去点击父节点吧... ");
				return false;
			}
		}

		function beforeCollapse(treeId, treeNode) {
			className = (className === "dark" ? "" : "dark");
			showLog("[ " + getTime() + " beforeCollapse ]&nbsp;&nbsp;&nbsp;&nbsp;" + treeNode.name);
			return (treeNode.collapse !== false);
		}

		function onCollapse(event, treeId, treeNode) {
			showLog("[ " + getTime() + " onCollapse ]&nbsp;&nbsp;&nbsp;&nbsp;" + treeNode.name);
		}

		function beforeExpand(treeId, treeNode) {
			className = (className === "dark" ? "" : "dark");
			showLog("[ " + getTime() + " beforeExpand ]&nbsp;&nbsp;&nbsp;&nbsp;" + treeNode.name);
			return (treeNode.expand !== false);
		}

		function onExpand(event, treeId, treeNode) {
			showLog("[ " + getTime() + " onExpand ]&nbsp;&nbsp;&nbsp;&nbsp;" + treeNode.name);
		}

		function showLog(str) {
			if (!log) log = $("#log");
			log.append("<li class='" + className + "'>" + str + "</li>");
			if (log.children("li").length > 8) {
				log.get(0).removeChild(log.children("li")[0]);
			}
		}

		function getTime() {
			var now = new Date(),
				h = now.getHours(),
				m = now.getMinutes(),
				s = now.getSeconds(),
				ms = now.getMilliseconds();
			return (h + ":" + m + ":" + s + " " + ms);
		}

		function expandNode(e) {
			var zTree = $.fn.zTree.getZTreeObj("treeDemo"),
				type = e.data.type,
				nodes = zTree.getSelectedNodes();
			if (type.indexOf("All") < 0 && nodes.length == 0) {
				alert("请先选择一个父节点");
			}

			if (type == "expandAll") {
				zTree.expandAll(true);
			} else if (type == "collapseAll") {
				zTree.expandAll(false);
			} else {
				var callbackFlag = $("#callbackTrigger").attr("checked");
				for (var i = 0, l = nodes.length; i < l; i++) {
					zTree.setting.view.fontCss = {};
					if (type == "expand") {
						zTree.expandNode(nodes[i], true, null, null, callbackFlag);
					} else if (type == "collapse") {
						zTree.expandNode(nodes[i], false, null, null, callbackFlag);
					} else if (type == "toggle") {
						zTree.expandNode(nodes[i], null, null, null, callbackFlag);
					} else if (type == "expandSon") {
						zTree.expandNode(nodes[i], true, true, null, callbackFlag);
					} else if (type == "collapseSon") {
						zTree.expandNode(nodes[i], false, true, null, callbackFlag);
					}
				}
			}
		}

		$(document).ready(function () {
			$.fn.zTree.init($("#treeDemo"), setting, zNodes);
			$("#expandBtn").bind("click", {
				type: "expand"
			}, expandNode);
			$("#collapseBtn").bind("click", {
				type: "collapse"
			}, expandNode);
			$("#toggleBtn").bind("click", {
				type: "toggle"
			}, expandNode);
			$("#expandSonBtn").bind("click", {
				type: "expandSon"
			}, expandNode);
			$("#collapseSonBtn").bind("click", {
				type: "collapseSon"
			}, expandNode);
			$("#expandAllBtn").bind("click", {
				type: "expandAll"
			}, expandNode);
			$("#collapseAllBtn").bind("click", {
				type: "collapseAll"
			}, expandNode);
		});
		//-->
	</SCRIPT>
</HEAD>

<BODY>
	<h1>展开 / 折叠父节点控制</h1>
	<h6>[ 文件路径: core/expand.html ]</h6>
	<div class="content_wrap">
		<div class="zTreeDemoBackground left">
			<ul id="treeDemo" class="ztree"></ul>
		</div>
		<div class="right">
			<ul class="info">
				<li class="title">
					<h2>1、beforeCollapse / onCollapse<br/>&nbsp;&nbsp;beforeExpand / onExpand 事件回调函数控制</h2>
					<ul class="list">
						<li>利用 collapse / expand 事件回调函数 可以控制父节点是否允许 展开 / 折叠，这里简单演示如何监控此事件</li>
						<li>
							<p>试试看：
								<br/> &nbsp;&nbsp;&nbsp;&nbsp;
								<input type="checkbox" id="callbackTrigger" checked /> expandNode 方法是否触发 callback
								<br/> &nbsp;&nbsp;&nbsp;&nbsp;单个节点--[ <a id="expandBtn" href="#" title="不想展开我就不展开你..." onclick="return false;">展开</a> ] &nbsp;&nbsp;&nbsp;&nbsp;[ <a id="collapseBtn" href="#" title="不想折叠我就不折叠你..." onclick="return false;">折叠</a> ] &nbsp;&nbsp;&nbsp;&nbsp;[ <a id="toggleBtn" href="#" title="你想怎样？..." onclick="return false;">展开 / 折叠 切换</a> ]
								<br/> &nbsp;&nbsp;&nbsp;&nbsp;单个节点（包括子节点）--[ <a id="expandSonBtn" href="#" title="不想展开我就不展开你..." onclick="return false;">展开</a> ] &nbsp;&nbsp;&nbsp;&nbsp;[ <a id="collapseSonBtn" href="#" title="不想折叠我就不折叠你..." onclick="return false;">折叠</a> ]
								<br/> &nbsp;&nbsp;&nbsp;&nbsp;全部节点--[ <a id="expandAllBtn" href="#" title="不管你有多NB，统统都要听我的！！" onclick="return false;">展开</a> ] &nbsp;&nbsp;&nbsp;&nbsp;[ <a id="collapseAllBtn" href="#" title="不管你有多NB，统统都要听我的！！" onclick="return false;">折叠</a> ]</p>
							<li>
								<p><span class="highlight_red">使用 zTreeObj.expandNode 方法，详细请参见 API 文档中的相关内容</span>
									<br/> collapse / expand log:
									<br/>
									<ul id="log" class="log"></ul>
								</p>
							</li>
					</ul>
					</li>
					<li class="title">
						<h2>2、setting 配置信息说明</h2>
						<ul class="list">
							<li class="highlight_red">事件回调函数的使用，详细请参见 API 文档中 setting.callback 的相关内容</li>
							<li class="highlight_red">如果需要调整 展开 / 折叠 的动画效果， 详细请参见 API 文档中 setting.view.expandSpeed 的相关内容</li>
						</ul>
					</li>
					<li class="title">
						<h2>3、treeNode 节点数据说明</h2>
						<ul class="list">
							<li>对 节点数据 没有特殊要求，用户可以根据自己的需求添加自定义属性</li>
						</ul>
					</li>
			</ul>
		</div>
	</div>
</BODY>

</HTML>